G - Physics – 08 – C
Patent
G - Physics
08
C
G08C 15/00 (2006.01)
Patent
CA 2575971
Methods and apparatus (14) for storing, manipulating, retrieving, and forwarding state, e.g., context and other information, used to support communications sessions with one or more end nodes, e.g., mobile devices, are described. Various features are directed to a mobile node controlling the transfer of state from a first access node to a second access node during a handoff operation thereby eliminating any need for state transfer messages to be transmitted between the second access node and the first access node during handoff. Other features of the invention are directed to the use of a core network node to store state information. State information stored in the core node can be accessed and used by access nodes in cases where a mobile node does not send a state transfer message during a handoff, e.g., because communication with the first access node is lost or because such messages are not supported.
L'invention concerne des procédés et un dispositif de stockage, de manipulation, d'extraction et d'acheminement d'état, par exemple, un contexte et d'autres informations, qui servent à prendre en charge des sessions de communication avec un ou plusieurs noeuds terminaux, notamment des dispositifs mobiles. Diverses caractéristiques concernent un noeud mobile qui commande le transfert d'état d'un premier noeud d'accès à un second noeud d'accès au cours d'une opération de transfert de manière à éliminer la nécessité de transmission des messages de transfert d'état entre le second noeud d'accès et le premier noeud d'accès lors du transfert. D'autres caractéristiques de l'invention concernent l'utilisation d'un noeud de réseau central pour stocker les informations d'état. L'accès et l'utilisation, par des noeuds d'accès, des informations d'état stockées dans le noeud central sont possibles dans le cas où un noeud mobile ne transmet pas un message de transfert d'état lors du transfert, par exemple, en raison de la perte de communication avec le premier noeud d'accès ou de l'absence de prise en charge de ce type de messages.
Corson Scott M.
Dynarski Richard J.
Mazik David R.
O'neill Alan
Park Vincent
Qualcomm Flarion Technologies Inc.
Qualcomm Incorporated
Smart & Biggar
LandOfFree
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